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164415892 = 221913715791
BaseRepresentation
bin10011100110011…
…00100110010100
3102110101012012111
421303030212110
5314042302032
624152000404
74034340424
oct1163144624
9373335174
10164415892
1184899103
1247090104
13280a8714
1417b9c484
15e67ac47
hex9ccc994

164415892 has 24 divisors (see below), whose sum is σ = 305101440. Its totient is φ = 77307840.

The previous prime is 164415883. The next prime is 164415931. The reversal of 164415892 is 298514461.

It is a super-3 number, since 3×1644158923 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517 + ... + 18307.

It is an arithmetic number, because the mean of its divisors is an integer number (12712560).

Almost surely, 2164415892 is an apocalyptic number.

It is an amenable number.

164415892 is a deficient number, since it is larger than the sum of its proper divisors (140685548).

164415892 is a wasteful number, since it uses less digits than its factorization.

164415892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15951 (or 15949 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 164415892 is about 12822.4760479402. The cubic root of 164415892 is about 547.8326739748.

The spelling of 164415892 in words is "one hundred sixty-four million, four hundred fifteen thousand, eight hundred ninety-two".

Divisors: 1 2 4 19 38 76 137 274 548 2603 5206 10412 15791 31582 63164 300029 600058 1200116 2163367 4326734 8653468 41103973 82207946 164415892